In response to the Covid-19 pandemic, we have made the decision to postpone all of our public face-to-face engagement events and meetings for the safety of our staff, stakeholders and communities. We have also put in place alternative ways of communicating and engaging regularly with communities to ensure that we can continue to inform, listen and respond.
The HS2 Helpdesk remains operational all day, every day, and is your first point of contact: Freephone 08081 434 434; Minicom 08081 456 472; Email: [email protected]. If you contact us by post there will be an extended delay in us responding to you.

The Chilterns tunnel approach at its South Portal.

HS2 is constructing nine tunnels between London and Birmingham.

HS2 will have 64 miles of tunnelling. Find out where the nine tunnels are being built and about the tunnelling technology used to construct them.

HS2 tunnels by area

Buckinghamshire tunnels

Buckinghamshire tunnels

Buckinghamshire will benefit from two HS2 tunnels. The 10 mile long Chilterns tunnel and a green tunnel at Wendover.

West Midlands tunnels

West Midlands tunnels

HS2 is constructing two tunnels in this area. The Bromford tunnel and a green tunnel at Burton Green.

London tunnels

Under London, HS2 will dig two tunnels. From West Ruislip and Euston, meeting at Old Oak Common.

Warwickshire and Northhamptonshire

Warwickshire and Northhamptonshire

The two counties will benefit from three HS2 tunnels, at Long Itchington, Chipping Warden and Greatworth.

A tunnel boring machine, over 170 metres long sits in a factory yard. Along its side, ducts, pipes and supports are visible.

Tunnelling tech

Find out how HS2 tunnels will be built using the latest technology

Dig for more information

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